Fireless-cooking apparatus.



A. HfRE-VHLL d. T.' P. MURRAY.

FIRELESS GQOKING APPARATUS.

APPLICATION FILED AUG. 26,1910.

' Patented N ov. 5, 1912.

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i UNTEUv STATES PATENT FEE.

ALEXANDER H. REVELL AND THOMAS P. MURRAY, OF CHICAGO, ILLINOIS; SAID MURRAY ASSIGNOR TO SAID REVELL.

FIILZELESS-COOKINGI- APPARATUS.

Specificatofl of Letters Patent.

Patented Nov. 5, 1912.

To all i/#zom 'it moi; concern;

lle it known that we, ALEXANDER H. RE- vnm. and 'lnowms P. MURRAY, both residing at- (lhieago, in the county ot' Cook and State ot lllinois, have invented certain new and use'tful lmproveinents in Fireless-Cooking .f\ppara.tus, of which the following is a true7 clear, and precise specification.

Our invention relates to tireless cooking apparatus and contemplates various t'eatures and improvements in construction, operation and control.

Qur invention will be more clearly understood Afrom the following specification and by reference to the accompanying drawings, in which drawingsu Figure l is a irontl elevational View of an oven partly in section to show the interior arrangement, Fig. 2 is a plan view of the tray member shown in F ig. l, and Fig. 3 is a sectional view taken on plane 9V-3, Fig. Q.

Vln the :torni of stove shown, the floor is in the torni of a tray Q8 adapted to receive a removable hood Q9 above the tray, the hood being constructed of inner and outer walls to be highly non-conductive to heat. The tray has also an inlet opening 29 provided therein and controlled by a plate 30, this plate being preferably arranged between the inner and outer walls 3l and 32 of the tray and slidable in grooves 3S formed by deflecting inwardly the edges of the walls 31 and about the inlet opening and about the passageway ll- 'torined adjacent theinlet Jfor receiving the plate 30 when slid outwardly to open the inlet. The plate has a bar 35 1eX- tending therefrom to the exterior through opening R5 in the side wall 36 of the tray, the end ot the bar being bent at 37 so as to be easily manipulated by'tlie hand to be slid inwardly a-nd outwardly to close or open the inlet Q9. rlhe side walls 3G extend a dis tance above the inner wall 3l of the tray t0 torni a guard 'for retaining the hood 29 in proper position on the tray. For supporting the various cooking utensils within the hood we provid a rack Jframe 3S adapted to supi poi-t grid trames 39 in various horizontal; posit ions to receive the various cooking uten- I in operation the grid trames 39 are ad- 4l, and particularly for baking, one or more and to give a preliminary heating to the hood and tray and to the various members within the hood, and after sutlicient heat has been charged the burner is extinguished and the bar 3o is pushed inwardly to carry theplate 3() over the inlet to entirely close the receptacle, whereatter the accumulated heat will be effective in finishing the cooking 0r baking process. f

Fireless cookers have heretofore been constrncted more tor ordinary cooking purposes than for baking purposes and have also been more 0r less clumsy` to handle and to manipulate. As above stated, their eti'iciency is also far from maximum on account of loss of heat during transportation of the separately heated radiators and cooking utensils and the great absorption of heat by the cold receptacle into which the radiators and utensils were subsequently placed, these receptacles being usually only open at the top so that the utensils have to be let down into them. Our improved torni hasl more of the features of the ordinary stove or oren and as adaptable for baking as it is for ordinary cooking. The device can be set on a stove, or within the oven thereof.' As the utensils with the material therein and the radiators can behandled when cold and inserted in the oven to be there during the initial heating period, unich walking and carrying ot' hot parts by the operator is eliminated. Our device is also entirely sanitary and fire-proof.

As changes and modifications can readily be made without departing from the scope of our invention, we do not desire to be limited to the precise t'orins and arrangements which we have shown and described, and we there tore claim the, following:

ln a tireless cookingl apparatus, the combination oi" double metallic sheet metal walls t'orming a receptacle, the space between said walls being lilled in with non-conductive material. thesheot metal walls of the floor ot said receptacle being cnt awayL to leave an inlet opening, and the sections o'l' the metal adjacent said inlet opening being deflected into said opening and bent to form opposed sldeways, and a plate controllable from the exterior of the recept-nele for engaging in said sldeways to open or close inlet, said inlet being adapied for association wa' a suitable burner Jor admitting heat into th@ interior of the recptzwle.

In Witness whereof, we heraun'c subscribe mme this-z day of August, A. D.

.- HN L THOMIPSONE (humus J. SCHMIDT. 

